Bottle-neck-forming tool.



No. 646,85l. Patented Apr. 3,1900.

' H. R. LOPER.

BOTTLE NECK FORMING TOOL.

(Application filed Apr. 24, 1899.

- (llu Model.)

lvihwaaea YNE Ncmms PETERS ca. Pnmoumo wusulucnou. n. c.

NITED STATES PATENT OFFICE.

HENRY R. LOPER, OF BALTIMORE, MARYLAND,-ASSIGNOR, BY MESNE ASSIGNMENTS,TO THE AMERICAN STOPPER'COMPANY, OF NEW YORK, N. Y.

BOTTLE- N ECK-FORMING 'TOO'L.

SPECIFICATION forming of Letters Patent No. 646,851, dated April 3,1900.

Application filed April 24, 1899- Serial Ila-714,227. (N model.)

:the necks of bottles'and other vessels.

Ithas for its object to provide an easilyrotatable sectional mold and tocombine with I arable mold.

it non-rotatable devices to form the interior of the bottle-neck, saiddevices being adapted to press the metal out into the mold, and ingeneral to improve the efficiency of tools of the general natureindicated.

The invention consists in the construction hereinafter described andpointed out.

In the accompanying drawings, Figure l is a perspective of the improvedtool. Fig. 2 is a longitudinal section of the same. Fig. 3 is anelevation of a'mold-section. Figs. 4and 5 are perspectives of details.

Numerals 1 1 denote the sections of a sep;

2 2 indicate bow members operatively connected to said sections to closethe same to fit the mold for use, and 3 is a spring put under tensionwhen the bow is compressed and adapted to open the mold-sections whendesired. Said sections are rotatably supported on a stem 4.

A spreader or expander to press metal outwardly and into the closed moldcomprises two resilient members 6 6, situated in a tubular extension ofthe stem 4. The compression of the bow first closes the mold-sections,which constitute the moldand which is adapted to receive the neck of abottle. Saidneck having been introduced into the mold, a furthercompression of the bow opens the, ex: pander-fingers 6 Within thebottle-neck,whi'ch, together with the mold, is rotated about suchexpander and forms the'neck interior and expands the metal into themold.

7 7 indicate interior mold projections to form bayonet-joint grooves onthe exterior of the bottle-neck, and the fingers 6 6 expandthe metal andpress it about the projections while they (the fingers) are alsofinishing the interior of the neck.

The mold-sections have-each an extension 8, situated in a slot 9 in amutilated ring or block 10, rotating on a stem extension 15, fixed tothe stem 4: and constituting a mold-section support. I

Pivots 12 connect the mold-section extensions 8 with the ring 10 in amanner to permit them tobe opened and closed. Obviously the mutilatedring or block 10 if made in the form of a complete ring would operate asdescribed; but to reduce Weight it is preferredto out the metal away, asshown. 7 v

13 denotes a mold-bottom fixed to the cylinder-stem and provided with anoblong slot 13' to permit a pin 22, fixed in ring 20, to slide asrequired in the opening and closing of the expander-fingers 6.

'14 is a collar fixed on the upper end of the stem or sleeve 15. Theblock or ring 10 rotates freely between the mold-bottom and said collar14, but is held against movement lengthwise the tool.

16 denotes a ring loosely surrounding the mold and adapted to be movedlengthwise the mold' and its extensions 8 by means of the wires 17,fixed thereto and having forwardlyinclined parts playing loosely inholes 18 in the bow members. lVhen said members are caused to approacheach other by compression of their connecting-spring 3, the inclinedwires 17 are forced through the holes 18, and the ring 16 is therebymoved forward on the mold-sections, with the effect to close them andhold them'closed until the spring 3 is relieve'd and permitted to openthe bow, whereupon a reverse movement of its members draws the ring orcams down upon the mold extensions 8 and upon the outwardly-inclinedparts 8' thereof, (see Fig. 2,) which forces the ends of the extensionsinwardly and opens the mold by turning its sections outwardly about thepivots 12.

When the mold is closed, it, together with its extensions and the block10, can be rotated within the ring 16 and about the moldbottom 13 andabout the stem extension by means of a bottle having its neck held inthe mold and manipulated on the chair or table, as usual in the art.

The expander members 6 6, which are loosely supported in the stemextension 15, are opened and closed by a wedge 19, actuated by spring 3through the medium of a ring 20, connected to the bow members bysuitably-bent wires 21, passing freelythrough holes 11 in the bow.

When spring 3 is compressed and the bow members made to close the mold,as above described, the wires 21 are forced through holes 11, with theeflect to move the ring forward. This ring is connected at 22 to thesliding piece or bar 23, which carries the wedge 19. This wedge whenpushed forward by means of the bar 23 and its connection to the ringspreads apart the fingers, thereby forcing the metal into the mold. Whenthe spring 3 opens the bow and the mold, the wedge 20 and wedge 19 areretracted and the expander closed by the resiliency of its members.

The parts are constructed substantially as shown and so that the moldwill be closed before the expander is opened, and said closed expandercan be used as an opener for the bottle-neck, which latter function isprovided for by the extension of the fingers beyond the mouth of themold, as indicated.

In operation the reheated bottle-neck is inserted in the closed moldupon the closed expander, and then the mold is rotated about the stemextension and mold-bottom, the bottle turning with the mold.

The expander does not rotate, but its fin gers are opened subsequentlyto the closing of the mold by the wedge, as stated, and they spread themetal outwardly and finish the neck interior while it is rotated aboutthe opened fingers, the metal being simultaneously pressed into the moldaround the mold projections 7.

The bottle is released from the mold when opened by spring 3, which willoccur as soon as the operator relaxes his grasp of the bow.

Having thus described my invention, what I claim is- 1. In a machine forforming and molding the necks of bottles, a how, a separable androtatable mold for forming the outside of the neck, in combination withexpansible but non-rotatable fingers for forming the inside of the neckand forcing the metal into the mold, means for operating themold-sections comprising Wires cooperating with the bow to close themold, and wires cooperating with the bow to expand the fingers.

2. In a machine for forming and molding the necks of bottles, a bow, aseparable and rotatable mold for forming the outside of the neck, incombination with expansible :bnt non-rotatable fingers for forming theinside of the neck and forcing the metal into the mold, means foroperating the mold-sections comprising wires cooperating with the bow toclose the mold, and wires cooperating with the bow to expand thefingers, and a ring embracing the mold to hold the mold closedindependently of the bow.

3. In a tool for forming and molding the necks of bottles, a separablemold, a non-rotatable expander, a bow operatively connected to the moldand to the expander, and an expander-support fixed to the how, the moldbeing rotatable about the expander and its support, and both positivelyopened and closed by the bow, and the bow operative to open the expanderafter the mold has been closed.

4. In a machine for forming and molding the necks of bottles, a bow, aseparable and rotatable mold for forming the outside of the neck, incombination withexpansible but nonrotatable fingers for forming theinside of the neck and forcing the metal into the mold, and a device forholding the mold closed independ ently of the bow, said devicecomprising a ring embracing both mold-sections.

5. In a machine for forming and molding the necks of bottles, a bow,a-separable and rotatable mold for forming the outside of the neck, incombination with expansible but nonrotatable fingers for forming theinside of the neck and forcing the metal into the mold, and a device forholding the mold closed independently of the bow, said device comprisinga ring movable endwise the mold and adapted to closely embrace it whenclosed.

6. In a machine for forming and molding the necks of bottles, aseparable and rotatable mold for forming the outside of the neck, incombination with expansible but non-rotatable fingers for forming theinside of the neck and forcing the metal into the mold, and a device forholding the mold closed independ ently of the bow, said expandingfingers being suitably formed at their extremities and extending beyondthe mouth of the mold and all other parts to open the neck.

7. In a machine for forming and molding the necks of bottles, aseparable and rotata ble mold foriforming the outside of the neck, incombination with expansible but non-rotatable fingers for forming theinside of the neck and forcing the metal into the mold, and a lockingdevice for holding the mold closed independently of the'bow. v

8. In a machine for forming and molding the necks of bottles, a bow,aseparable and rotatable mold for forming the outside of the neckincombination with expansible but nonrotatable fingers for forming theinside of the neck and forcing the metal into the mold, and a ring forholding the mold closed independentl y of the bow, said ring incooperation with the bow being adapted to close the sections.

9. In a machine for forming and molding the necks of bottles, a how, aseparable and rotatable mold for forming the outside of theneclgin-combination with expansible but nonrotatable fingers for formingthe inside of the neck and forcing the metal into the mold, and a ringfor holding the mold closed independently of the bow, said ring beingadapted in cooperation with the bow to open the sections.

10. In a machine for forming and molding the necks of bottles, a bow, arotatable mold comprising separable sections foi' forming the outside ofthe neck in combination with expansible but non-rotatable fingers forforming the inside of the neck and forcing the metal into the mold, anda ring bearin g on the mold-sections and movable endwise of the tool toopen or close said sections and to hold them either open or closed atwill.

11. In a machine or tool for forming and molding the necks of bottles, arotatable sectional mold, a sectional expander, devices whereby the moldmay be opened and closed, said devices comprising cams mediately actedupon by the bow,and devices whereby the expander may be opened andclosed, said expander extending out beyond the mouth of the mold to openthe neck.

12. In a machine or tool for forming and molding the necks of bottles, aslotted cylindrical stem in combination with fingers held in said stemand extending beyond the end thereof, a ring turning freely on the stem,separable mold-sections pivotally connected to said ring, and devices toopen and close the mold-sections without hindrance to the rotation ofthe closed mold. x

13. In a machine or tool for forming and molding the necks of bottles, arotatable sectional mold, a bow, a ring connected to the bow and adaptedto open and close the moldsections, a sectional expander and a secondring connected to the bow and adapted to open and close theexpander-sections.

In testimony whereof I have signed this specification in the presence oftwo subscrib ing witnesses.

HENRY R. LOPER. Witnesses:

EDGAR POE REIss, WILLIAM W. YOUNG.

